Home / 38,960.92-53,766.08-21,055.90

Finding the Fourth Proportional to 38,960.92, 53,766.08 and 21,055.90

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Solution

The fourth proportional to 38,960.92, 53,766.08 and 21,055.90 is: 29,057.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,960.92 : 53,766.08 = 21,055.90 : x
  2. Step 2: Convert to fraction form
    38,960.92/53,766.08 = 21,055.90/x
  3. Step 3: Cross multiply
    38,960.92x = 53,766.08 × 21,055.90
  4. Step 4: Simplify right side
    38,960.92x = 1,132,092,829.76
  5. Step 5: Solve for x
    x = 1,132,092,829.76/38,960.92
  6. Step 6: Final answer
    x = 29,057.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.